Condenser plate



Patented Aug. 19, 1930 UNITED STATES.

PATENT OFFICE DESTER, OF NEWARK/NEW JERSEY CONDENSER PLATE Application filed February 16, 1927. Serial No. 168,560.

" contour, the rotor'plates-being clamped at their axis of revolution between Washers or otherwise held in approved spaced relation upon a spindle mounted for rotation and the.

stator plates held at several points along their peripheral edge to a suitable rigid frame.

In suchstructures it is important that the rotor plates be rigidly secured in uniform spaced relation to the spindle and the stator plates be equally firmly fixed intheirsupports at corresponding equal distances apart and be maintained in such relation.

It is equally important'that both sets of plates retain theiroriginalflat condition, that is, do notbuckle or bend, due to contact with contiguous objects, or from the inherent strains in the metal as imposed in rolling during its fabrication, or again, by the stamping and pressing operations by which its shape is completed.

Having these, matters in view it has been one object of the present invention toprovide means equivalent to apartial integral hub by which the several plates may be firmly and 0 neatly secured to a spindle in a particularly effective manner. I

A further feature is in the provision of means whereby the several plates are held at one or more points in positive, fixed, spaced relation, this device being applicable alike to both rotor and stator plates of the usual type of construction, the device tending to prevent plate distortion.

These objects are attained by the novel construction and arrangement of .parts hereinafter described and illustrated in the accompanying drawing, forming a material part of this disclosure, and in whichF- Figure 1 is a perspective view of aseries of conventional rotor plates as engaged on a spindle by means included in the invention and also bound at' their remote edges by analogous means.

' Figure 2 is a fragmentary plan view of the same.

Figure 3 is a'perspective View of a series of rotor plates heldin operative relation at two opposedpoints.

Figure 4 is a partial plan view thereof,

Figure 51's a fragmentary plan View show- 5. ing the manner in which the plates may .be mounted for arcuate spacing.

Persons familiar withthe art will readily recognize the series of plates illustrated in the several views, in which Figures 1 and 2 clearly indicate a series of rotor platesgenerally designated by the reference numeral 10, the same being attached to a hollow spindle 11 such as is usually employed.

The method of attachment consists in forming an integral arcuate flange 12 at ,a right angle on each plate circumjacent the opening to receive the spindle, the flange actng as a seat partially surrounding the spin dle andclose fitting the same.

While the flange may be so proportioned as to make intimate contact with the next succeeding plate, thereby acting as aspacer, it is preferred to make the length of the flange. slightly shorter to permit flowing of solder between its end and the next plate, it being understood that the plates will .be primarily assembled with suitable spacing devices interposed prior to the soldering operation and held rigidly clamped in such relation.

-At some point at the outer edge of each plate, preferably the most remote, another flange 'l l is formedto extend laterally from the same side as the flange 12 and of an equivalent length.-

Since the flanges 12 and 14 of each plate are of equal length, the several plates of a condenser may be accurately spaced by mounting the plates so that the flanges 12 and 14 of each plate abut the next adjacent plate, as shown in Figure 5.

These flanges, whixi are at right angles with the plates and present flat, straight outer surfaces, are connected to a flat strip or bar 15 by solder, reventing twisting, Winding or buckling oi the plates and, in addition, the bar retains the platesin proper spaced relation.

The stator plates 16 are, as usual, provided with a cut-out 17 to clear the spindle 11 when the plates are interleaved.

Flanges 18 and 19 are turned at right angles from two or more points on the peripheral edges of the plate 16, thesefia-nges being of the nature before described and are connected in a similar manner by bars QOand 21 as clearly shown, the same operating to hold the stator plates in. suitable spaced 're- 10 lation and prevent their distortion.

The extending ends of the bars 20-21 are further employed as means to secure the assembled plates to their supports in any preferred manner.

1a While certain preferred embodiments of this device have been shown and described, it will be understood that changes in the form, arrangements, proportions, sizes and details thereof may be made without depart- 20 ing from the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new and desire to secure-by Letters Patent, is 5- I In a condenser, a plurality of plates, a shaft to" which said plates are'attached, each plate being provided at its free edge remote from .the shaft with an integral peripheral spacing flange perpendicular to the plane of the plate so and abutting the adjacent plate, and a flat bar attached to said flanges to maintain the platesin fixed spaced relation.

This specification signed this 25th day of January, 1927. v

35 WILLIAM F. DESTER. 

